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原文
Plunger valve maintenance Swashplate axial piston valve is commonly used rotating cylinder, end with a stream. Side surface of the cylinder by a double set with a metal plate with the oil pan with steel friction pair formed, and most are flat with the current method used, so maintenance more convenient. With axial piston valve oil pan is one of the key components, valve work, while the working chamber of the high-pressure oil into the cylinder block with oil pan, oil pan and cylinder block with the other hand, the film pressure between the formation of hydraulic cylinder to cylinder block away from the anti-thrust with the oil pan. Cylinder with the oil pan on the design of hydraulic clamping force Fn slightly larger than the cylinder with hydraulic oil pan on the counter-thrust Ff, the Fn / Ff = 1.05 ~ 1.1, the valve is working properly and to maintain a high volumetric efficiency. In fact, due to oil pollution, often with oil pan and cylinder block between the slight wear. Particularly high, even minor wear can also increase the hydraulic thrust reverser Ff, thereby undermining the Fn III Troubleshooting 1 plunger valve output flow rate less than or oil output (1) insufficient inhalation. The reason is the resistance of suction pipe on the road is too large or fill fuel shortage. If the speed of the valve is too large, the tank liquid level is too low, into the pipeline leak, oil filter blockage. (2) excessive leakage. The reason is the valve clearance is too large, due to poor sealing. Such as the oil pan is equipped with metal fragments, iron and other scratches, face oil spills; variable one-way valve body in sealing surface with the bad, the body and the bearing surface with the oil pan with trachoma or research marks and so on. You can check the hydraulic oil in the valve body, foreign body mixed discriminant valve damaged parts.
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译文：
斜盘式轴向柱塞阀一般采用缸体转动、端面配流的形式。缸体端面上镶有一块由双金属板与钢配油盘组成的摩擦副，而且大多数是采用平面配流的方法，所以维修比较方便。配油盘是轴向柱塞阀的关键部件之一，阀工作时，一方面工作腔的高压油把缸体推向配油盘，另一方面配油盘和缸体间的油膜压力形成对缸体的液压反推力使缸体背离配油盘。缸体对配油盘的设计液压压紧力Fn略大于配油盘对缸体的液压反推力Ff，即Fn/Ff=1.05~1.1，使阀工作正常并保持较高的容积效率。　　实际上，由于油液的污染，往往使配油盘与缸体之间产生轻微磨损。特别是高压时，即使轻微的磨损也可以使液压反推力Ff增大，从而破坏Fn 三、常见故障处理　　1.柱塞阀输出流量不足或不输出油液　　(1)吸入量不足。原因是吸油管路上的阻力过大或补油量不足。如阀的转速过大，油箱中液面过低，进油管漏气，滤油器堵塞等。　　(2)泄漏量过大。原因是阀的间隙过大，密封不良造成。如配油盘被金属碎片、铁屑等划伤，端面漏油;变量机构中的单向阀密封面配合不好，阀体和配油盘的支承面有砂眼或研痕等。可以通过检查阀体内液压油中混杂的异物判别阀被损坏的部位。

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